Comparison of IPIL measured with Gunshot and Shock tube noise ...
Scientific CMOS...or 40 fps through the USB 3.0 interface renders it truly extraordinary in the...
Transcript of Scientific CMOS...or 40 fps through the USB 3.0 interface renders it truly extraordinary in the...
Zyla and Neo sCMOS CamerasWiden Your Expectations
Scientific CMOS
Introducing theZyla 4.2 PLUS
• 82% QEmax
• 99.8% linearity• 53 fps (USB 3.0)• 100 fps (Camera Link)
Scientific CMOS (sCMOS) technology overviewScientific CMOS (sCMOS) is a breakthrough technology that offers an advanced set of performance features that render it ideal to high fidelity, quantitative scientific measurement.
Scientific CMOS can be considered unique in its ability to simultaneously deliver on many key performance parameters, overcoming the ‘mutual exclusivity’ associated with current scientific imaging technology standards, and eradicating the performance drawbacks traditionally associated with CMOS imagers.
sCMOS - Imaging without compromise
The multi-megapixel sensors offer a large field of view and high resolution, without compromising read noise, dynamic range or frame rate. Rolling and Global (Snapshot) shutter readout ensure maximum application flexibility.
Read noise is exceptional, even when compared to the highest performance ‘slow-scan’ CCDs. The fact that an sCMOS device can achieve 1 electron rms read noise while reading out up to 5.5 megapixels at 100 fps through the 10-tap cameralink interface, or 40 fps through the USB 3.0 interface renders it truly extraordinary in the market. By way of comparison, the lowest noise Interline CCD, reading out only 1.4 megapixels at ~16 fps would do so with ~10 electrons read noise.
The low noise readout is complemented by up to 33,000:1 dynamic range. Usually, for CCDs or EMCCDs to reach their highest dynamic range values, there needs to be a significant compromise in readout speed, yet sCMOS can achieve this value while delivering high frame rates. The unique dual amplifier architecture of sCMOS allows for high dynamic range by offering a large well depth, despite the relatively small 6.5 µm pixel size, alongside lowest noise. A 1.4 megapixel Interline CCD with similarly small pixels achieves only ~1,800:1 dynamic range at 16 fps. sCMOS is uniquely capable of simultaneously delivering:
• Extremely low noise
• Rapid frame rates
• Wide dynamic range
• High resolution
• Large field of view
• High Quantum Efficiency (QE)
• Rolling and Global (Snapshot) exposure modes
Sensitivity
Dynamic Range
Resolution
Speed
Field of View
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Derek Toomre, PhD., Associate Professor, Department of Cell Biology, Yale University School of Medicine, USA
Neo cameras will literally allow one to see cells in a new light with ultra
sensitive imaging at speeds never achieved before - as we have seen in our tests of vesicle trafficking. These scientific CMOS cameras are not a small step, but a quantum leap, that will open up new possibilities of what can be studied in fast cellular processes, rapid screening, and super-resolution imaging.
Parameter sCMOS (Zyla 4.2 PLUS) Interline CCD EMCCD
Sensor Format 4.2 megapixel 1.4 to 4 megapixel 0.25 to 1 megapixel
Pixel Size 6.5 µm 6.45 to 7.4 µm 8 to 16 µm
Read Noise 0.9 e- @ 30 fps 1.1 e- @ 100 fps 4 - 10 e- < 1e- (with EM gain)
Full Frame Rate (max.) Sustained: 100 fps full frame 3 to 16 fps ~30 fps
Quantum Efficiency (max.) 82% 60% 90% ‘back-illuminated’
Dynamic Range 33,000:1 (@ 30 fps) ~3,000:1 (@ 11 fps) 8,500:1 (@ 30 fps with low EM gain)
Multiplicative Noise None None 1.41x with EM gain
See page 40 for‘Comparing sCMOS with
other detectors’technical note
Andor’s Neo sCMOS vacuum cooled camera platform has been engineered from the ground up, specifically to realize the absolute highest sensitivity from this exciting new sensor technology.
Neo 5.5 offers an exceptionally low dark current and read noise floor detection limit, maintained even under longer acquisition times, alongside a wide dynamic range of 30,000:1. Speeds of 30 fps (full frame) can be maintained over extended kinetic series acquisitions, with 100 fps achievable in burst mode.
Neo 5.5 offers an advanced set of unique performance features and innovations, including deep vacuum TE cooling to -40°C, extensive ‘on-head’ FPGA data processing capability, a 4 GB memory buffer and a Data Flow Monitor. Andor’s UltraVacTM vacuum process has been implemented to offer not only the necessary deep cooling capability, but also complete protection of the sensor. These capabilities have been conceptualized to drive the best possible performance, image quality and longevity from sCMOS technology.
Neo 5.5 offers both Rolling and true Global (also known as ‘Snapshot’) shutter exposure mechanisms. Snapshot mode provides an exposure sequence that is analogous to that of an Interline CCD, whereby all pixels begin the exposure simultaneously and end the exposure simultaneously.
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Neo 5.5
Neo 5.5 QE curve
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-40ºC vacuum cooling 30 fps / 100 fps burst
Rolling and true Global shutter modes
30,000:1 dynamic range
Vacuum longevity Superb image quality
Blemish minimization Quantitative stability
4 GB on-head memory Vibration free fan off mode
5.5 megapixel Fast exposure switching
1 e- noise GPU Express
Key Features
TE cooling to -40°C
Minimization of dark current to maintain low noise advantage under all exposure conditions.
Minimization of hot pixel blemishes meaning more useful pixels. Fan-off mode for vibration
sensitive set-ups.
Rolling and true Global (Snapshot) shutter
Maximum exposure and readout flexibility across all applications. Snapshot for ‘Interline CCD’
exposure capability.
1 e- read noise Offers lower detection limit than any CCD.
5.5 megapixel sensor format and 6.5 μm pixels
Delivers extremely sharp resolution over a 22 mm diagonal field of view: ideal for cell
microscopy, digital pathology, high content screening and astronomy.
Dark Noise Suppression (DNS) technology
Extremely competitive low dark current of 0.14 e-/pix/sec with fan cooling. Maintains low noise
advantage across range of exposure conditions.
Rapid frame rates >30 fps over extended kinetic series. Burst to memory at 100 fps full frame.
UltraVac™Sustained vacuum integrity and unequalled cooling with 5 year warranty; complete sensor
protection.
Dual-Gain amplifiersMaximum well depth and lowest noise simultaneously, affording extended dynamic range of
30,000:1.
GPU ExpressSimplify and optimize data transfers from camera to Graphical Processing Unit (GPU) card to
facilitate accelerated GPU processing as part of the acquisition pipeline.
4 GB on-head image bufferEnables bursts of 100 fps @ full dynamic range. Capture extended kinetic series faster than
PC write speed, avoiding prohibitively expensive PCs.
Sub-microsecond inter-frame gap Global Shutter offers down to 100 ns inter-frame gap, ideal for PIV applications.
Extensive FPGA on-head data processing
Essential to ensure best image quality and quantitative fidelity from sCMOS technology.
Hardware timestamp FPGA generated timestamp with 25 ns accuracy.
Dynamic baseline clampEssential to ensure quantitative accuracy across the image area and between successive
images of a kinetic series.
Spurious noise filter Realtime FPGA filter that identifies and compensates for spurious high noise pixels.
Data flow monitor Innovatively manage acquisition capture rates vs data bandwidth limitations.
Comprehensive trigger modes and I/O
Communication and synchronization within intricate experimental set-ups.
Features and Benefits
Active Pixels 2560 x 2160
Pixel Size (W x H; μm) 6.5 x 6.5
Sensor size (mm) 16.6 x 14
Read Noise (median, e-)1 @ 200 MHz
1.3 @ 560 MHz
Sensor Cooling -40°C
Pixel Well Depth (e-) 30,000
Max Readout Rate (MHz)560 MHz
(280 MHz x 2 outputs)
Max Frame Rates (fps)Sustained: 30 fps full frame Burst: 100 fps full frame
QE max 60%
Key Specifications
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Andor’s Zyla 5.5 sCMOS camera offers high speed, high sensitivity imaging in a remarkably light and compact design. Both Rolling and true Global shutter modes offer extensive application flexibility. Global shutter is ideally suited to fast multi-dimensional microscopy, offering tight synchronization to ‘moving’ peripheral devices such as z-stage or light source.
Zyla is ideally suited to many cutting edge applications that push the boundaries of speed, offering sustained frame rate performance of up to 100 fps (faster with ROI). A highly cost-effective USB 3.0 version is also available, offering an unparalleled 40 fps (full frame) and 1.2 e- rms read noise, representing an ideal low light ‘workhorse’ camera solution for both microscopy and physical science applications, in either research or OEM environments.
Rolling and Global (Snapshot) shutter readout ensures maximum application flexibility. Global shutter in particular provides an important ‘freeze frame’ exposure mechanism that emulates that of an Interline CCD, overcoming the transient readout nature of Rolling shutter mode.
‘Conceptualized to dramatically outperform Interline CCD technology within a ‘mid-range’ price bracket, Andor’s Zyla 5.5 sCMOS is ideally placed to become the new gold standard workhorse imaging detector.’
Zyla 5.5
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The light and compact form factor coupled with design and mounting adaptability, board level or private labelling options, and unparalleled engineering support, renders the Zyla highly suited to OEM integration.
Please call Andor to discuss how Zyla can be made to work for you.
Zyla sCMOS for OEM
Compact and light 25,000:1 dynamic range
Rolling and Snapshot exposure
0°C cooling @ up to 35°C ambient
100 fps sustained Superb image quality
1.2 e- noise @ 30 fps Quantitative stability
5.5 megapixel GPU Express
Cost effective Market leading USB 3.0
Key Features
Zyla 5.5 QE curve
Compact and light Highest QE sCMOS sensor, providing optimal signal to noise in low light applications.
Rolling and true Global (Snapshot) shutter
Maximum exposure and readout flexibility across all applications. Snapshot for ‘Interline CCD
mode’ freeze frame capture of fast moving/changing events.
Industry fastest frame rates 100 fps sustained via Camera Link (full frame). Industry fastest USB 3.0 frame rates.
FCS ModeOffers a market-leading speed of 27,057 fps from a 2560(h) x 8(v) region of interest, ideally
matched to the temporal demands associated with Fluorescence Correlation Spectroscopy.
Low fan vibration Designed with vibration sensitive experiments in mind, such as super-resolution microscopy.
1.2 e- read noise Offers lower detection limit than any CCD.
5.5 megapixel sensor format and 6.5 μm pixels
Delivers extremely sharp resolution over a 22 mm diagonal field of view: Ideal for cell
microscopy, digital pathology, high content screening and astronomy.
Dual-gain amplifiers Maximum well depth and lowest noise simultaneously, affording extended dynamic range of
25,000:1.
12-bit and 16-bit modes 12-bit for smaller file size and absolute fastest frame rates through USB 3.0; 16-bit for full
dynamic range.
TE cooling to 0°C in 35°C ambient
Ideal for OEM integration into enclosed systems.
GPU ExpressSimplify and optimize data transfers from camera to Graphical Processing Unit (GPU) card to
facilitate accelerated GPU processing as part of the acquisition pipeline.
Dark Noise Suppression (DNS) technology
Extremely competitive low dark current of 0.14 e-/pix/sec with fan cooling. Maintains low noise
advantage across range of exposure conditions.
Sub-microsecond inter-frame gap
Global Shutter offers down to 100 ns inter-frame gap, ideal for PIV applications.
Water cooled option Access lowest possible vibration and -10ºC cooling.
High Quantum Efficiency Optimized for popular green / red emitting fluorophores.
Extensive FPGA on-head data processing
Essential to ensure best image quality and quantitative fidelity from sCMOS technology.
Hardware timestamp FPGA generated timestamp with 25 ns accuracy.
Dynamic baseline clamp Essential to ensure quantitative accuracy across the image area and between successive images of a kinetic series.
Spurious noise filter Real time FPGA filter that identifies and compensates for spurious high noise pixels.
Features and Benefits
Active Pixels 2560 x 2160
Pixel Size (W x H; μm) 6.5 x 6.5
Sensor size (mm) 16.6 x 14
Read Noise (median, e-)1.2 @ 200 MHz
1.45 @ 560 MHz
Sensor Cooling 0°C (up to +30°C ambient)
Pixel Well Depth (e-) 30,000
Max Readout Rate (MHz)560 MHz
(280 MHz x 2 outputs)
Max Frame Rates (fps)Camera Link: 100 USB 3.0: 40
QE max 60%
Key Specifications
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NEW
Featuring IndustryFastest USB 3.0
40 fps @ 5.5 megapixel
Zyla 4.2 PLUS is the latest sCMOS technology advancement from Andor. Offering the highest and broadest sCMOS QE profile available, maximizing at 82%, and ideally suited to a wide range of common fluorophores. The Zyla 4.2 PLUS is also uniquely speed-optimized to deliver a sustained 53 fps at full resolution through a convenient USB 3.0 interface, 77% faster than competing sCMOS cameras. New on-camera intelligence delivers a significant linearity improvement, providing unparalleled quantitative measurement accuracy across the full dynamic range.
The high resolution 4.2 megapixel camera delivers QE performance that is 10% higher than the previous gold-standard sCMOS sensor, coupled with < 1 e- read noise and 33,000:1 dynamic range in a light, compact, low vibration design, intended for both research and OEM usage. The Zyla 4.2 PLUS also includes application specific capability, such as FCS Mode. FCS Mode offers a market-leading speed of 26,041 fps from a 2048(h) x 8(v) region of interest, ideally matched to the temporal demands associated with Fluorescence Correlation Spectroscopy.
NEW GPU Express facilitates real time data processing.
The Zyla 4.2 PLUS differs fundamentally from Zyla 5.5 in terms of shutter flexibility. Whereas Zyla 5.5 offers both Rolling and true Global shutter modes, the Zyla 4.2 PLUS operates in Rolling shutter mode. However, a mechanism called ‘Simulated Global Exposure’ is available, whereby a TTL output from the camera can be used to activate a pulsed light source, emulating the Global shutter exposure condition, albeit with less efficiency.
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> 80% QE Cost effective
< 1 e- read noise 33,000:1 dynamic range
Dark Noise Suppression Technology
Superb image quality
100 fps sustained Quantitative stability
Market leading USB 3.0 speed
GPU Express
4.2 megapixel LightScan PLUS with CycleMax
Key Features
Zyla 4.2 PLUS QE curve
82% QE Highest available photon capture efficiency across visible/NIR, optimized for all common fluorophores.
0.9 e- read noise Lowest read noise sCMOS. Significantly lower than any CCD.
Market leading USB 3.0 speed
Superb USB 3.0 data transfer efficiency and Zyla’s unique 12-bit high speed mode deliver up
to 53 fps full resolution, 77% faster than competing sCMOS. Follow dynamic processes with
improved temporal resolution.
FCS ModeOffers a market-leading speed of 26,041 fps from a 2048(h) x 8(v) region of interest, ideally
matched to the temporal demands associated with Fluorescence Correlation Spectroscopy.
LightScan PLUS
Reduce background and improve contrast and resolution in scattering samples. Designed to
allow users to maximise signal and confocality concurrently in applications such as Scanned
Light Sheet Microscopy and Line Scanning Confocal Microscopy.
Low fan vibration Designed with vibration sensitive experiments in mind, such as super-resolution microscopy.
4.2 megapixel sensor format and 6.5 μm pixels
Delivers extremely sharp resolution over a 18.8 mm diagonal field of view; ideal for cell
microscopy and astronomy.
Compact and light Ideal for integration into space restrictive set-ups. Ideal for OEM.
Rolling shutter and simulated Global Exposure mode
Rolling shutter mode optimizes read noise and frame rate. Employ simulated Global shutter method if possibility of Rolling shutter spatial distortion.
Dual-gain amplifiersMaximum well depth and lowest noise simultaneously, affording extended dynamic range of 33,000:1.
99.8 % linearity Unparalleled quantitative accuracy of measurement across the full dynamic range.
GPU ExpressSimplify and optimize data transfers from camera to Graphical Processing Unit (GPU) card to
facilitate accelerated GPU processing as part of the acquisition pipeline.
TE cooling to 0°C in 27ºC ambient
Ideal for OEM integration into enclosed systems.
Dark Noise Suppression (DNS) technology
Extremely competitive low dark current of 0.14 e-/pix/sec with fan cooling. Maintains low noise
advantage across range of exposure conditions.
Water cooled option Access lowest possible vibration and -10ºC cooling.
Hardware timestamp FPGA generated timestamp with 25 ns accuracy.
Dynamic baseline clampEssential to ensure quantitative accuracy across the image area and between successive images of a kinetic series.
Spurious noise filter Real time FPGA filter that identifies and compensates for spurious high noise pixels.
iCam Market leading exposure switching with minimal overheads.
Features and Benefits
Active Pixels 2048 x 2048
Pixel Size (W x H; μm) 6.5 x 6.5
Sensor size (mm) 13.3 x 13.3
Read Noise (median, e-)0.9 @ 216 MHz
1.1 @ 540 MHz
Sensor Cooling 0°C (up to +27°C ambient)
Pixel Well Depth (e-) 30,000
Max Readout Rate (MHz) 540 MHz
Max Frame Rates (fps)Camera Link: 100 USB 3.0: 53
QE max 82%
Key Specifications
Kurt Thorn, Assistant Adjunct Professor, UCSF School of Medicine, California, USA
The Andor Zyla provides an impressive combination of field-
of-view, sensitivity, resolution and speed. It is a highly versatile camera that can be used for many different applications.
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Industry FastestUSB 3.0 53 fps
@ 4.2 megapixel
Featuring LightScan PLUS
Performance and Adaptability • Dual Amplifier – novel pixel architecture means you don’t need to pre-select gain. Access lowest read noise and full well depth simultaneously.
• 1000 fps – access extremely fast frame rates through user definable Region of Interest control, suited to many applications within the physical sciences. GPU Express for real time data processing.
• Global shutter – Zyla 5.5 offers this important mode that completely avoids spatial distortion, and ensures temporal correlation across all regions of the sensor. Sub-microsecond inter-frame gap, ideal for PIV applications.
• Low dark current – low read noise is complimented by extremely competitive dark current, also ensuring minimized hot pixel blemishes.
• Cooling options – standard camera air cools to 0ºC up to +35ºC ambient. Water cooled option available on request.
• Blemish correction maps and advanced control – upon request, Andor provides bespoke capability to turn off/on blemish correction, for those who prefer to perform this themselves. Blemish maps can be provided.
• Compact and Light – the extremely small volume footprint of Zyla renders it adaptable to intricate optical set-ups.
Zyla sCMOS has become a well established detector amongst physicists, biophysicists and astronomers; the advanced combination of speed, sensitivity and dynamic range enabling new ground to be broken.
Example Areas of Application
The Zyla can be readily lens coupled to scintillators and phosphors, presenting a high resolution, sensitive and fast solution for tomography.*
X-Ray / Neutron TomographyAccessing > 1000 fps using ROIs renders the Zyla an ideal Wavefront detector. Use with a data splitter to enable direct data access. GPU Express for real time data processing.
Adaptive Optics
The QE profile of Zyla PLUS is very good in the red/NIR region, ideal for BEC of Rb.
Bose Einstein Condensation
The FCS mode, now available on Zyla 4.2 PLUS provides market leading speeds of 26,041 fps from a 2048(h)x8(v) region of interest, ideally matched to the temporal demands associated with Fluorescence Correlation Spectroscopy.
Fluorescence Correlation Spectroscopy
Fast frame rates, wide dynamic range and great linearity present a very formidable solution to the specific detector needs of next generation large solar telescopes.
Solar Astronomy
Zyla’s fast frame rate and large field of view are ideal for this resolution enhancing technique. GPU Express for real time data processing.
Lucky / Speckle ImagingThe true Global Shutter mode of Zyla 5.5 facilitates an inter-frame gap of down to 100 ns.
Particle Imaging Velocimetry (PIV)
Check out Andor’s new Zyla HF Fiber Optic coupled camera, superb for fast indirect X-Ray applications such as tomography or non-destructive testing.
* Zyla HF
sCMOS image courtesy of Jin Ma, Xinglong Observatory, National Astronomical Observatory of Chinese Academy of Sciences
Zyla sCMOS has proven a superb camera choice for the biologist and microscopist. Many simply see the Zyla as an amazing value, superb price/performance ‘workhorse’ camera with which to replace their existing Interline CCD and upgrade the performance of their fluorescence microscope. Others are driven by distinct application performance criteria that only sCMOS can answer.
Quality, Throughput, Performance, Accessibility…
• High Sensitivity and Wide Dynamic Range – quantify very weak and very bright structures with one image.
• Superb Image Quality – high resolution and uniform backgrounds for publication-quality imaging.
• Capture Everything – the larger field of view matches that of modern microscopes. Achieve better statistics and higher throughput in high content experiments.
• Blazingly Fast – more and more studies of cell processes require greater temporal resolution. GPU Express for real time data processing.
• Ease of use – designed to get you up and imaging with minimal fuss.
• Flexible – fast or slow, big or small, weak or bright … Zyla is adaptable all of your imaging challenges.
Example Areas of Application
Neuroscience, Vesicle Transport, Parasitology, Blood Flow, OphthalmologyOther biological applications include:
The fast frame rate and excellent sensitivity of Zyla is ideally suited to the particular needs of ion signalling microscopy. Zyla 4.2 PLUS offers superlative sensitivity at speed, but electrophysiology may require the Global shutter exposure mode of Zyla 5.5 to ensure temporal correlation across the whole image.
Physiology / Ion Imaging
The Zyla’s fine pixel resolution, great sensitivity, large field of view and fast imaging speed offers a superb choice of platform for following/tracking fast processes at the cell membrane. Multi-wavelength TIRF may benefit from Zyla 5.5 in Global shutter.
TIRF Microscopy
Zyla sCMOS yields markedly improved throughput and statistical validity of data in high content analysis. For example, a larger field of view results in analysis of more cells per image; wider dynamic range means a field of variable intensity cells can be quantified in only one acquisition; and higher sensitivity results in reduced acquisition times. GPU Express for real time data processing.
High Content Screening
The motile cell is captured extremely well by the speed and resolution of the Zyla. Generally, the Rolling shutter of Zyla 4.2 PLUS is suitable, but care must be taken of distortive effects if the cell is moving particularly fast. For example, it has been noted that the Zyla 5.5 in Global shutter mode was required to image motile sperm cells.
Cell Motility
LightScan PLUS is a new feature set available on Zyla 4.2 PLUS has the following benefits for Light Sheet Microscopy applications:
• Optimize signal to noise AND confocality concurrently
• CycleMax – Maximum frame rates with reduced dead-time, no need to reset light sheet for each alternate frame
Lightsheet Microscopy The low vibration, high QE (QEmax 82%), low noise and speed capability of Zyla 4.2 PLUS (USB 3.0 and CameraLink) is well suited to the particular detection criteria of single molecule based ‘STORM / PALM’ approaches, and is used by some as an alternative to EMCCDs for this purpose. Note, this should be considered distinct from the general needs of single molecule microscopy, which are best served by back-illuminated EMCCD cameras (see Andor iXon EMCCD range). There is the capability to switch off interpolative filtering and the provision of custom blemish maps. GPU Express for real time data processing.
Super Resolution Microscopy
Zyla - The Biologist’s Choice Zyla - The Physicist’s Choice
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Upgrade Your Microscope’s PerformanceZyla sCMOS - Disruptive Technology, Familiar Price
What was the benchmark imaging detector?
Interline CCD technology has been the dominant ‘workhorse’ detector type for fluorescence cell microscopy for almost 15 years, the benchmark sensor being a 1.4 megapixel, 6.45 µm pixel size device, offering typical read noise floor between 5 and 8 e- rms at modest frame rates of 11-12 fps.
Upgrade your microscope using the imaging superiority of Zyla sCMOS:Fundamentally, sCMOS technology has been conceptualized as a vastly superior alternative to Interline CCDs. Indeed, Andor’s Zyla sCMOS offers dramatically higher performance, yet remains within the same price bracket as Interline cameras, and is ideally placed to become the new gold standard ‘workhorse’ laboratory detector. Importantly, Zyla uniquely comes with both Rolling and true Global (Snapshot) shutter.
In particular, Global shutter offers a simple Snapshot imaging capability, directly analogous to that of Interline CCDs, offering zero image distortion and perfect for synchronizing to peripheral devices.
The table below compares some typical performance specifications of a 1.4MP Interline CCD to those of the new Zyla sCMOS, outlining the approximate factor improvement that is available.
* Frame rates provided are for the ‘10-tap’ Cameralink model. An even more affordable USB 3.0 model is available, in the case of the Zyla 5.5 offering 40 fps sustained at full 5.5 megapixel resolution.
Why is Zyla such an impressive all-round imager?
• Superior performance – vastly superior to Interline across key performance parameters.
• Rolling and Global exposures (Zyla 5.5) – Zyla is unique in offering both these exposure modes in one camera. Global shutter (Snapshot) is directly analogous to the Interline exposure mechanism.
• Image quality – a huge amount of effort and on-camera (FPGA) intelligence has gone into optimizing image quality in Zyla.
• Flexibility – fast, slow, weak, bright, pixel binned, region of interest, Rolling shutter, Snapshot shutter… Zyla is adaptable to a broad gamut of application requirements.
• Affordable price – with so many superb features, we have endeavoured to make the Zyla accessible to every lab. Request a quote, you’ll be pleasantly surprised!
• USB 3.0 - ‘Plug and play’ interface with industry fastest frame rates.
5x more sensitive
sCMOS CCD
4x larger field of view
5.5 MP sCMOS
1.4 MP CCD
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Live cell imaging
Widefield fluorescence microscopy
Developmental biology
Embryo studies
Physiology / Ion Imaging
Neuroscience / Vesicle Transport
Parasitology
Cell Motility
Key Biological Applications4x more pixels
5x more sensitive
10x more dynamic range
16x faster
Benefits of Upgrading
Parameter Typical Interline CCD Specifications
Zyla 5.5 sCMOS Specifications
sCMOS Factor Improvement (approx.)
Read Noise 6 e- 1.2 e- 5x more sensitive
Sustained Frame Rate 12 fps @ 1.4 MP100 fps @ 5.5 MP*200 fps @ 1.4MP ROI* 16x faster
Dynamic Range 2,250:1 25,000:1 10x more dynamic range
Sensor Format 1.4 megapixel 5.5 megapixel 4x more pixels
Performance and Innovations
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Zyla uniquely offers both 12-bit and 16-bit modes. 12-bit for smaller file size and absolute fastest frame rates through USB 3.0; 16-bit for full dynamic range.
Readout Speed (MHz) Neo 5.5 Readout Noise (e-)
Rolling Shutter Global Shutter
200 1 2.3
560 1.3 2.5
Readout Speed (MHz) Zyla 4.2 PLUS Readout Noise (e-)
Rolling Shutter
200 0.9
540 1.1
Lowest Noise Floor
Andor’s ultra sensitive sCMOS cameras have broken new ground in offering down to 0.9 electron rms read noise, without signal amplification technology.
What is truly extraordinary is that this performance level is achievable at 30 fps, representing 200 MHz pixel readout speed. Furthermore, even at full readout speed, the read noise floor is negligibly compromised, maintaining down to 1.3 e -
rms at 100 fps. For the best CCD cameras to even approach 2 electrons noise, a readout speed of 1 MHz or slower is required. This minimal detection limit renders Andor’s sCMOS cameras suitable for a wide variety of challenging low light imaging applications.
Comparative low light images taken with Neo sCMOS (1.3 electrons read noise @ 560 MHz) vs. Interline CCD (5 electrons read noise @ 20 MHz), displayed with same relative intensity scaling.
(a) LED signal in a light-tight imaging enclosure, intensity ~30 photons/pixel; (b) Fluorescently labelled fixed cell using a CSU-X spinning disk confocal microscope (x60 oil objective), each 100 ms exposure, same laser power,
Interline CCDNeo sCMOS
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Neo sCMOS Interline CCD
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See page 49 for‘Understanding Read Noise’technical note
Extended Dynamic Range
The Andor Neo and Zyla cameras are designed to make use of the innovative dual ‘column-level’ amplifier design of the sensors.
Traditionally, sensors require that the user must select up-front between high or low amplifier gain (i.e. sensitivity) settings, depending on whether they want to optimize for low noise or maximum well depth. The dual amplifier architecture of the sCMOS sensor circumvents this need, in that signal can be sampled simultaneously by both high and low gain amplifiers. As such, the lowest noise of the chip can be harnessed alongside the maximum well depth, affording widest possible dynamic range of up to 33,000:1.
Dual Amplifier Architecture:Each column within each half of the sensor is equipped with dual column level amplifiers and dual analog-to-digital converters (ADC).
This architecture was designed to simultaneously minimize read noise and maximize dynamic range. The dual column level amplifier/ADC pairs have independent gain settings, and the final image is reconstructed by combining pixel readings from both the high gain and low gain readout channels to achieve an unprecedented intra-scene dynamic range from the relatively small 6.5 µm pixel pitch.
High contrast image recorded with dual amplifier 16-bit mode of Neo
Pixels sampled by low gain amplifier (~8,000 counts )
Pixels sampled by high gain amplifier (~800 counts )
See page 34 for‘Dual Amplifier Dynamic Range’
technical note
Neo and Zyla platforms both come equipped with an optional in-built FPGA filter that operates in realtime to reduce the frequency of the occurrence of high noise pixels that would otherwise appear as spurious ‘salt and pepper’ noise spikes in the image background.
Spurious Noise Filter
Data Flow Monitor
The sCMOS sensor in Neo and Zyla is capable of extremely fast data read rates, but this in itself imposes considerable challenges.
For sustained kinetic series measurements it is possible to be rate limited by:
(a) bandwidth of the Camera Link interface connecting the camera to the PC
(b) hard drive write speed
In such circumstances the true frame rate threshold also depends on many set-up factors, including exposure time, ROI size, binning, pixel readout rate and choice of single or dual amplifier data.
The Data Flow Monitor, available through Andor Solis acquisition and analysis software, has been innovated to provide a simple visual tool that enables you to instantly ascertain if your acquisition parameters will result in a rate of data transfer that is too fast for either interface or hard drive. It will also determine if the kinetic series size is within the capacity of camera memory, hard drive space or PC RAM.
e.g. 1 - Requested kinetic series within capability of Camera Link data transfer bandwidth and Hard Disk Drive write speed.
e.g. 2 - Hard Disk Drive will not write data fast enough for the requested kinetic series. Advised to first reduce data rate.
Maximum frame rates achievable from the Zyla 5.5 and Zyla 4.2 PLUS sCMOS USB 3.0 and 10-tap Camera Link versions 12-bit (16-bit)
Market Leading USB 3.0 PerformanceZyla’s speed optimized USB 3.0 interface delivers an unparalleled 40 fps from 16-bit mode and 53 fps from Zyla’s unique 12-bit mode (4.2 megapixel array).
iCam fast exposure switchingNeo and Zyla benefit from Andor’s iCam technology, an innovation that ensures minimal overheads associated with fast exposure switching.
This is particularly important during multi-color microscopy acquisition protocols, whereby it is necessary to repeatedly and rapidly flip between pre-set exposure times matched to the relative signal intensity of each fluorophore.
iCam offers market leading acquisition efficiency, whether software or externally triggered.
Performance and InnovationsRapid Frame Rates
The parallel readout nature of sCMOS means it is capable of reaching very rapid frame rates of up to 100 full frames per second, and much faster with region of interest.
Distinctively, this is accomplished without significantly sacrificing read noise performance, markedly distinguishing the technology from CCDs. Andor’s sCMOS cameras are uniquely designed to harness this speed potential.
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Prof Stefan Diez, Heisenberg Professorship for BioNanoTools, Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
Our experiments with Andor’s new sCMOS camera have been highly
encouraging. The combination of very low noise sensitivity at rapid frame rates, coupled with high pixel resolution and large dynamic range, will enable us to investigate single molecules at timescales which were previously not accessible.
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GPU ExpressThe Andor GPU Express library has been created to simplify and optimize data transfers from camera to a CUDA-enabled NVidia Graphical Processing Unit (GPU) card to facilitate accelerated GPU processing as part of the acquisition pipeline. Integrates easily with Andor SDK3.
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Array Size Zyla 5.5 USB 3.0 Zyla 5.5 10-tap Zyla 4.2 PLUS 10-tap
Zyla 4.2 PLUS USB 3.0
Rolling shutter Global shutter Rolling shutter Global shutter Rolling shutter Rolling shutter
2560 x 2160 40 (30) 40 (30) 100 (75) 49 (49) - -
2048 x 2048 53 (40) 52 (39) 105 (98) 52 (52) 101 (101) 53 (40)
1920 x 1080 107 (80) 98 (80) 200 (200) 97 (97) 192 (192) 107 (80)
512 x 512 422 (422) 201 (201) 422 (422) 201 (201) 406 (406) 406 (406)
128 x 128 1691 (1691) 716 (716) 1691 (1691) 716 (716) 1627 (1627) 1627 (1627)
2048 x 8 (FCS mode) 27057 (27057) 4008 (4008) 27057 (27057) 4008 (4008) 26041 (26041) 26041 (26041)
Performance and InnovationsDeep Thermoelectric Cooling
Andor’s Neo offers the deepest sensor cooling available from any CMOS imaging camera on the market, minimizing both dark current and hot pixel blemishes. Additionally, through the use of water cooling, the fan can be switched off in the software to minimize camera vibration; ideal for set-ups that are particularly vibration sensitive.
Deep TE cooling is useful for a number of reasons:Minimization of dark current
sCMOS cannot be considered a truly flexible, workhorse camera unless dark current contribution has been minimized. Deep cooling means the low noise advantage can be maintained under all exposure conditions.
Minimization of hot pixel blemishes
Hot pixels are spurious pixels with significantly higher dark current than the average and can be problematic even under relatively short exposure times. Cooling has a major influence in minimizing the occurrence of such events, offering both an aesthetically cleaner image and a greater number of unfiltered, usable pixels.
Minimization of vibration
Many optical configurations are sensitive to vibrations from the camera fan.
Andor’s Neo offers:
(a) Two fan speeds
(b) The ability to turn off the fan, either temporarily or permanently if flowing liquid through the camera (the latter also allows the Neo to be stabilized at -40ºC)
5 Year Vacuum WarrantyOur faith in the unique sCMOS vacuum process used in Neo means that we are proud to offer an extensive 5 year warranty on the vacuum enclosure.
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VACUUM WARRA
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NEO SCMOS
• Permanent hermetic vacuum seal
• Sustained deep TE cooling
• No maintenance / re-pumping
• No risk of condensation
• Minimize out-gassing
UltraVac™ (Neo only)
The Andor Neo is the only vacuum housed CMOS sensor available on the market, offering superior quality, performance and longevity.
Andor’s proprietary UltraVac™ process has a proven track record of field reliability, accumulated over more than 15 years of shipping high-end vacuum cameras. Using a proprietary technique, we have adapted these process for use with the additional connections associated with the sCMOS sensor.
Permanent, All-Metal Seal Vacuum
Heat Removal
Single input Window
(Anti-reflection Coated)
sCMOS Sensor
TE Cooler
Schematic of the Neo sCMOS permanent vacuum head
Thermal noise can sacrifice the sCMOS low detection limit. Low light images recorded with a Neo sCMOS camera at +5ºC and -40ºC sensor cooling temperatures; 50 sec exposure time; 200 MHz readout giving 1 electron read noise.
Hot pixel blemishes are significantly reduced at deeper cooling temperatures, requiring much reduced pixel correction. Uncorrected images are shown above for 1 sec exposure.
sCMOS @ -40ºC sCMOS @ +5ºC
-40ºC
+5ºC
Exposure time: 1 s
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Neo Cooling Temperature Dark current (e-/pix/sec)
-30ºC (fan cooling) 0.015
-40ºC (10ºC liquid) 0.007
The temperature sensor in the Neo and Zyla sCMOS cameras measures with a thermostatic precision of 0.05ºC
Thermostatic PrecisionSee page 36 for‘Importance of TE Cooling’technical note
Performance and InnovationsAdvanced FPGA on-head processing
Andor’s Neo and Zyla cameras are each equipped with considerable FPGA processing power. This is essential in order to dynamically normalize data at the pixel level for minor variations in bias offset, thus eradicating fixed pattern noise associated with this CMOS phenomenon. This superior dynamic processing capability is also utilized to optionally filter the small percentage of spurious noise pixels from the image.
Pixel-level bias offset compensation
The advanced processing power and memory capacity permits implementation of bias offset compensation for every pixel in the array. This ultimately relates to a lower noise background.
Dynamic baseline clamp
A real time algorithm that uses dark reference pixels on each row to stabilize the baseline (bias) offset. Necessary to ensure quantitative accuracy across each image and between successive images.
Spurious noise filter
An optional real time filter that identifies and compensates for ‘spurious’ high noise pixels that are greater than 5 electrons (< 1% of all pixels).
Andor offer the capability to switch off interpolative pixel filtering and provision of custom blemish maps, important for applications such as super-resolution microscopy or astronomy.
• 21.8 mm diagonal (Zyla 5.5 and Neo 5.5); 18.8 mm diagonal (Zyla 4.2 PLUS)
• Closely matched to modern microscopes
• Pre-selected ROIs to quickly opt for smaller FOV if required
• x 3.5 larger than popular 512 x 512 EMCCD sensor
• x 3.9 larger than popular 1.4 MP Interline CCD sensor
• Combine large FOV with dual wavelength image splitter (OptoSplit)
Large Field of View
The multi-megapixel sensors present in the Neo and Zyla offer an extended field of view, markedly exceeding the FOV available from alternative Interline CCD devices.
Flexibility is key however, and if a large FOV is not required for a particular application, Neo and Zyla offer a range of pre-selected ROI sizes at the click of a button, as well as user defined (with single pixel granularity).
5.5 megapixel sCMOS
1.4 megapixel Interline CCD
Field of View Comparison
Neo 5.5 and Zyla 5.5 Field of View vs popular 1.4 megapixel Interline CCD
Without pixel compensation
CMOS data requires compensation for fixed pattern variation. This is accomplished in real time for every pixel within the FPGA of Andor’s sCMOS cameras, essentially eliminating this noise source from the image.
With pixel compensation
Dynamic Baseline Clamp affords superior background image quality (Dark image, Rolling shutter, 10 ms exposure)
Competitor sCMOSNeo sCMOS
6.5 μm pixel size combined with 30,000 electron well depth
• Ideal balance of resolution, photon collection and well depth
• Superb 30,000 electron well depth
• No pixel binning required = no doubling of read noise
• No demagnification optics = no wasteful photon loss
The 6.5 μm pixel present in Neo and Zyla has been specifically designed to offer an optimal balance of optical resolution, photon collection area and well depth. This pixel size has been determined to provide ideal over-sampling of the diffraction limit in typical cell microscopy with x 60 and x 100 objectives.
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Performance and InnovationsRolling and Global (Snapshot) Shutter Modes
Neo 5.5 and Zyla 5.5 are distinct in offering both Rolling shutter and true Global shutter modes from the same sensor, such that the most appropriate mode can be selected dependent on application requirements.
Uniquely benefit from a choice…
The 5.5 megapixel sCMOS sensor that is in Zyla 5.5 and Neo 5.5 sCMOS cameras uniquely offers both Rolling and Global exposure modes. This provides superior application and synchronization flexibility and the ability, through Global exposure, to closely emulate the familiar ‘Snapshot’ exposure mechanism of Interline CCDs.
Rolling and Global Shutter Mechanisms
Rolling and true Global shutter modes describe two distinct types of exposure and readout sequence.
In Rolling shutter, available in all Andor sCMOS cameras, different lines of the array are exposed at different times as the read out ‘wave’ sweeps through the sensor. 10 ms are required at the start to ‘activate’ the sensor to expose, and then 10 ms are required at the end to readout the sensor. Use when not synchronizing to peripheral devices and only when there is a minimal risk of spatial distortion from slow moving sample.
In true Global shutter, offered in both Neo 5.5 and Zyla 5.5 models, each pixel in the sensor begins the exposure simultaneously and ends the exposure simultaneously. This provides a true ‘Snapshot’ exposure capability for moving samples that is both ‘photon-efficient’ and easy to synchronize to, especially useful for 3D / 4D microscopy. Zyla 4.2 PLUS, while utilizing a Rolling shutter sensor, offers a Simulated Global Exposure mechanism to overcome risk of spatial distortion. This mechanism is more elaborate and less photon/time efficient than true Global shutter. True Global Shutter is also essential for applications such as Particle Imaging Velocimetry (PIV), where sub-microsecond inter-frame gaps are required.
Exposure start Exposure
Rolling shutter exposure and readout (single scan)
ReadoutExposure start Exposure
Global shutter exposure and readout (single scan)
Exposure End
What should I be aware of as a buyer? Beware of ‘Gen II’ claims!
This topic carries particular relevance, as not all ‘scientific CMOS’ cameras on the market offer a choice of Rolling and true Global exposure. Most offer one or the other. In fact, a sensor that is currently being widely positioned in the market as “Gen II”, is actually the sensor used in the Zyla 4.2 PLUS. However, we would not go so far as to describe this as a 2nd generation sensor, as it achieves a higher Quantum Efficiency at the notable expense of true Global shutter capability.
The customer is highly advised to make an informed choice before purchasing, since in microscopy the more photon-efficient Global shutter approach can actually result in a higher signal to noise, faster synchronized frame rates and non-distorted images.
Key Benefits of true Global shutter (Zyla 5.5 and Neo 5.5)
Global shutter in particular is viewed as an important mode for the biologist, as its benefits are deeply synergistic with the core imaging requirements of live cell microscopy.
• No spatial distortion – avoiding the spatial distortion risk of Rolling exposure
• 3D / 4D microscopy - recommended for synching to peripheral switching devices
• Higher signal to noise due to reduced dead time offering higher ‘effective’ QE
• Simplicity – all the benefits of an ‘Interline exposure mode’
• Compatible with continuous or pulsed light sources
• Sub-microsecond inter-frame gap, ideal for PIV applications
Global Exposure is Distortion Free
If light is falling on the sensor during the ‘transient’ phases (first 10 ms and final 10 ms) of the Rolling shutter exposure mechanism, and an object is moving during this time, then there is a chance of some degree of spatial distortion. The degree of distortion is dictated by the relative size, direction and speed of the object. Global shutter avoids spatial distortion since there are no ‘transient’ exposure phases.
These images show the head of a moving sperm cell, imaged by the Neo sCMOS in both Global and Rolling shutter. Distortion of the shape of the sperm head is evident in Rolling shutter.
Correct Distorted
Global Rolling
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Dr. Phillip Bedggood, Metha Laboratory, Department of Optometry and Vision Sciences, University of Melbourne, Australia
For our work on quantifying red blood cell velocity in the retinal
capillaries we elected to operate in Global shutter mode, which produces minimally distorted images. When operating in Rolling shutter mode we observed significant image warping, even for moderate eye movements.
See page 30 for ‘Rolling and Global shutter’ technical note
To find out more about how to synchronize to Rolling and Global shutter (and to view our FAQs) visit andor.com/learning and read the ‘Synchronizing to Andor sCMOS Cameras’ technical note.
Performance and InnovationsComprehensive trigger functionality
Neo and Zyla offer a selection of advanced trigger modes, designed to provide tight synchronization of the camera within a variety of experimental set-ups. Triggering is compatible with both Rolling and Global shutter modes.
• External TTL, Software and Internal trigger (including Simulated Global Exposure - Zyla 4.2 PLUS)
• ‘Time Lapse’ and ‘Continuous’ (overlapped) kinetic series
• Fast exposure switching (iCam)
sCMOS Software Solutions
Andor Solis Solis is a ready to run Windows package with rich functionality for data acquisition and image analysis/processing.
Andor iQ A comprehensive multi-dimensional imaging software package. Offers tight synchronization of camera with a comprehensive range of microscopy hardware, along with comprehensive rendering and analysis functionality.
Andor SDK3 and GPU Express Andor SDK3 allows full control of sCMOS cameras from your own application, available as 32 and 64 bit libraries for WIndows (7 and 8) and Linux. GPU Express integrates with SDK3 (Windows), created to simplify and optimize data transfers from camera to NVidia GPU card for real time processing of high bandwidth data sets.
Bitplane ImarisImaris delivers all the necessary functionality for visualization, segmentation and interpretation of multidimensional datasets, up to 100s of Gigabytes in size.
Third Party Software CompatibilityThe range of third party software drivers for Andor’s sCMOS camera platforms is expanding steadily. Please enquire for further details.
Available Neo and Zyla trigger modes, applicable to both Rolling and Global shutter.
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Trigger Mode Description Trigger Sources
Time Lapse Each exposure started by a trigger event (e.g. TTL rising edge). Exposure duration is internally defined. Internal, External Software
Continuous Exposures run back to back with no time delay between them. Exposure time defined by time between consecutive trigger events. Internal, External
External Exposure Exposure time defined by TTL width (sometimes known as ‘bulb mode’). External
External Start TTL rising edge triggers start of internally defined kinetic series.External trigger, followed by internal timer
Dr. Ethan Schonbrun, Rowland Institute, Harvard University, USA
Andor’s sCMOS camera is the ideal solution for imaging flow cytometry
where both high speed and low read noise are critical.
Hyperspectral Imaging of Fluorescent Beads. Image courtesy of Dr. Ethan Schonbrun.
The Andor Imaging RangeHave you found what you are looking for? As an alternative to the sCMOS cameras, Andor offers an extensive portfolio of high performance low light imaging camera technologies.
Vacuum cooled, lowest noise sCMOS 1 electron read noise @ 30 fps
5.5 megapixel / 6.5 μm
-40ºC vacuum cooling
30 fps sustained; 100 fps burst
4 GB on head memory
16-bit data range
Fan off vibration free mode
Neo sCMOS
Fast, sensitive, compact, light sCMOS
1 electron read noise @ 30 fps
5.5 and 4.2 megapixel sensors / 6.5 μm
0ºC cooling at +30°C ambient
100 fps sustained (10-tap Camera Link)
Cost effective USB 3.0 option
16-bit data range
Zyla sCMOS
High-performance Interline CCD Industry lowest Interline read noise (2.4 e-)
-55ºC fan cooled; -40ºC vibration free mode
1.4 megapixel
USB 2.0 true plug and play
Clara Interline CCD
Deep cooled, low noise CCD -100ºC cooling
Back-illuminated > 90% QE
1 megapixel to 4 megapixel
Enhanced NIR versions
‘PV Inspector’ model (Optimized for EL / PL in-line inspection)
USB 2.0 true plug and play
iKon CCD
High performance EMCCD platform Single photon sensitive and back-illuminated
Industry fastest frame rates
-100ºC cooling
Flexible yet intuitive
Quantify in electrons or photons
iXon EMCCD
Dr. Yan Gu, Confocal Imaging and Analysis Lab National Institute for Medical Research, London, UK
We tested the Andor sCMOS camera in conjunction with a popular
cooled CCD camera, and compared with results from a similar test of a competitor’s scientific CMOS camera. Andor’s camera showed lowest dark noise, biggest field of view with very good sampling resolution (number of pixels), fastest frame rate, compatible signal to noise ratio and potentially largest dynamic range of detection. It is the most suitable camera on the market for our project.
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Application & Technical NotesNew technology and innovation heralds a lot of new questions!
The Andor Learning Center is dedicated to providing a greater depth of understanding of the performance and innovations associated with the Andor scientific CMOS camera platform. Deeper insight is provided into areas such as the unique dual amplifier architecture (for extended dynamic range), sCMOS read noise distribution, dark noise effects, vacuum sensor protection and Rolling vs. Global shutter readout modes.
Visit the Learning Center now to discover more at andor.com/learning.
Key sCMOS Resources include:
• Rolling and Global Shutter
• Dual Amplifier Dynamic Range
• The Importance of TE Cooling to sCMOS Technology
• Comparing sCMOS With Other Scientific Detectors
• Andor sCMOS PC Recommendations and Data Flow Considerations
• Understanding Read Noise in sCMOS
• Interpolative Blemish Corrections on sCMOS
• PIV Mode for Neo and Zyla
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Prof. Gabriel Popescu, Beckman Institute for Advanced Science and Technology, University of Illinois, USA
We developed a quantitative phase scanner, capable of imaging an entire microscope slide in less than 50 minutes, with submicron resolution. Due to the high sensitivity of Andor sCMOS cameras we were able to reduce our exposure time from 100 ms to 15 ms. The fast frame rates and large field of view of Zyla 5.5 are instrumental in studying fast dynamics in cells and reducing the number of frames to be acquired.
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Notes...
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Customer SupportAndor products are regularly used in critical applications and we can provide a variety of customer support services to maximize the return on your investment and ensure that your product continues to operate at its optimum performance.
Andor has customer support teams located across North America, Asia and Europe, allowing us to provide local technical assistance and advice. Requests for support can be made at any time by contacting our technical support team at andor.com/support.
Andor offers a variety of support under the following format:
• On-site product specialists can assist you with the installation and commissioning of your chosen product • Training services can be provided on-site or remotely via the Internet • A testing service to confirm the integrity and optimize the performance of existing equipment in the field is also available on request.
A range of extended warranty packages are available for Andor products giving you the flexibility to choose one appropriate for your needs. These warranties allow you to obtain additional levels of service and include both on-site and remote support options, and may be purchased on a multi-year basis allowing users to fix their support costs over the operating life cycle of the products.
Andor®, the Andor logo and iXon® are trademarks of Andor Technology Ltd. Changes are periodically made to the product and specifications are subject to change without notice.